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Pachymerium is a genus of centipedes in the family Geophilidae found mainly in the west Palearctic region and in south Africa. Centipedes in this genus feature an elongate head, scattered coxal pores, and sternal pores in a pair of anterior groups and a posterior transverse band; the forcipular coxosternite is broad, and the ultimate article of the forcipule has a prominent basal denticle.
Geophilidae is a family of soil centipedes in the superfamily Geophiloidea and the order Geophilomorpha. In 2014, a phylogenetic analysis based on morphological and molecular data found this family to be polyphyletic. To avoid this polyphyly, authorites dismissed the families Aphilodontidae, Dignathodontidae, Linotaeniidae, and Macronicophilidae, which are now deemed to be junior synonyms for Geophilidae. Authorities also moved some genera from Geophilidae to form the family Zelanophildae in order to avoid the polyphyly of the family Geophilidae. The family Geophilidae now includes more than 650 species in more than 120 genera. This family has a cosmopolitan distribution, with species found almost worldwide.
Himantariidae is a monophyletic family of centipedes in the order Geophilomorpha and superfamily Himantarioidea, found almost exclusively in the Northern Hemisphere. Centipedes in this family feature a short head with a concave labral margin bearing a row of denticles, a single dentate lamella and some pectinate lamellae on each mandible, second maxillae with strongly tapering telopodites and slightly spatulate claws, and a stout forcipular segment with short forcipules and a wide tergite; the ultimate legs usually have no pretarsus, and the female gonopods are distinct and biarticulate.
Geophilus hadesi is a species of soil centipede in the family Geophilidae. This centipede is a troglobite, spending its entire life cycle in a cave environment. This species and Geophilus persephones are the only two troglobites known in the order Geophilomorpha. The species G. hadesi is named after Hades, god of the underworld in Greek mythology and the husband of Persephone, the namesake of the first troglobite discovered among the soil centipedes. The species G. hadesi has been observed in a cave as far as 1,100 meters below the surface, the deepest underground that any centipede has ever been recorded.
Mecistocephalidae is a monophyletic family of centipedes in the order Geophilomorpha. It is the only family in the suborder Placodesmata. Most species in this family live in tropical or subtropical regions, but some occur in temperate regions. This family is the third most diverse in the order Geophiliomorpha, with about 170 species, including about 130 species in the genus Mecistocephalus.
Geophilus is a large, heterogeneous genus of soil centipedes in the family Geophilidae largely considered to be synonymous with Brachygeophilus. The generic name first appeared in Brewster's Edinburgh Encyclopaedia in 1814 as Geophilus electricus. This genus has a Holarctic distribution.
Schendylidae is a family of soil centipedes in the superfamily Himantarioidea and the order Geophilomorpha. These centipedes are found in the Americas, the Palearctic region, Africa, Madagascar, Australia, and southeast Asia, and also on some Pacific islands.
Ballophilidae is a monophyletic group of centipedes belonging to the order Geophilomorpha and superfamily Himantarioidea. Authorities now dismiss this group as a family, citing phylogenetic analysis, and instead refer to this clade as Ballophilinae, a possible subfamily within the family Schendylidae. Centipedes in this clade differ from others in the family Schendylidae by having bodies tapered toward the anterior tip, short heads, slender forcipules that are well apart, and an undivided lamina for the female gonopods. Centipedes in this clade are found in most tropical regions.
Gonibregmatidae is a family of soil centipedes belonging to the superfamily Geophiloidea. In 2014, a phylogenetic analysis based on morphological and molecular data found this family to be paraphyletic with respect to the families Neogeophilidae and Eriphantidae, which authorities now deem to be junior synonyms for Gonibregmatidae. This family now includes more than 20 species in at least 10 genera.
Pachymerinus is a genus of centipedes in the family Geophilidae. It was described by Italian entomologist Filippo Silvestri in 1905. Centipedes in this genus feature elongate heads, elongate forcipules with denticles, scattered coxal pores, and few sternal pores, if any; the intermediate part of the labrum is narrow and has no denticles. These centipedes range from about 3 cm to 8 cm in length, have 47 to 81 pairs of legs, and are found in Chile and southeast Australia. The Australian species Pachymerinus froggatti is notable for its relatively small size, measuring only 28 mm in length. The larger Chilean species P. porteri measures 46 mm in length but can have as few as 47 leg pairs, the minimum number recorded in this genus. The Chilean species P. pluripes measures only 32 mm in length but can have 79 or 81 leg pairs, the maximum number recorded in this genus. The Chilean species P. canaliculatus is known from a female specimen with 75 leg pairs and is notable for its large size, measuring 75 mm in length.
Ribautia is a genus of centipedes in the family Geophilidae. This genus was described by French myriapodologist Henry Wilfred Brolemann in 1909. Centipedes in this genus are found in South America, tropical Africa, Madagascar, the Arabian peninsula, Australia, New Zealand, and Melanesia.
Tuoba is a genus of 17 species of centipedes, in the family Geophilidae. This genus was described by American biologist Ralph Vary Chamberlin in 1920. These centipedes are found in coastal regions and islands in the Mediterranean and in the Atlantic, Pacific, and Indian oceans.
Mecistocephalus is the largest genus of centipedes in the family Mecistocephalidae, with about 140 species. This genus is among the most diverse and widespread of all the genera in the order Geophilomorpha. The British entomologist George Newport first proposed this genus in 1843 to contain a group of centipedes marked by an unusual elongation of the head.
Australiophilus ferrugineus is a species of centipede in the Zelanophilidae family. It is endemic to New Zealand. It was first described in 1877 by New Zealand biologist Frederick Hutton. Since then, authorities have recognized two junior synonyms, deeming Geophilus huttoni a synonym in 1936 and Geophilus polyporus a synonym in 2014.
Tasmanophilus spenceri is a species of centipede in the family Zelanophilidae. This centipede is found only in New Zealand and has only 39 pairs of legs, the minimum number recorded in the family Zelanophilidae. This species reaches only 23 mm in length and is the smallest centipede in this family.
Maoriella is a genus of centipedes in the family Geophilidae. It was described by Austrian myriapodologist Carl Attems in 1903. Species in this genus are found in New Zealand, Australia, and Tahiti.
Gonibregmatus is a genus of centipedes in the family Gonibregmatidae. It was described by British entomologist George Newport in 1843.
Marsikomerus is a genus of centipedes in the family Schendylidae. It was described by Austrian myriapodologist Carl Attems in 1938. Species in this genus are found in Mexico and in the United States.
Mecistocephalus spissus is a species of centipede in the Mecistocephalidae family. The American biologist Horatio Curtis Wood first described this species in 1862 based on type material found in Kauai or Oahu in Hawaii. This centipede has only 45 pairs of legs, the minimum number recorded in the genus Mecistocephalus, and was the first species in this genus to be discovered with such a modest number of legs.
Eucratonyx is a genus of centipedes in the family Gonibregmatidae. This genus was described in 1898 by British zoologist Reginald Innes Pocock. Centipedes in this genus are found from the Andaman Islands to New Britain.
References
- 1 2 3 Bonato, Lucio; Drago, Leandro; Murienne, Jerome (2014). "Phylogeny of Geophilomorpha (Chilopoda) inferred from new morphological and molecular evidence". Cladistics. The International Journal of the Willi Hennig Society. 30 (5): 485–507. doi: 10.1111/cla.12060 . PMID 34794246. S2CID 86204188.
- 1 2 3 "ITIS Standard Report Page: Zelanophilidae". www.itis.gov. Retrieved 29 June 2021.
- 1 2 Archey, Gilbert (1936). "Revision of the Chilopoda of New Zealand. Part 1". Records of the Auckland Institute and Museum . 2: 43–70. ISSN 0067-0464. JSTOR 42905967. Wikidata Q58676585.
- 1 2 3 Bonato, Lucio; Edgecombe, Gregory D.; Zapparoli, Marzio (2011). "Chilopoda – Taxonomic overview". In Minelli, Alessandro (ed.). The Myriapoda. Volume 1. Leiden: Brill. pp. 363–443. ISBN 978-90-04-18826-6. OCLC 812207443.
- ↑ Attems, Carl (1929). Lfg. 52 Myriapoda, 1: Geophilomorpha (in German). De Gruyter. p. 212. doi:10.1515/9783111430638. ISBN 978-3-11-143063-8.